Federal – Mogul Serina Co., Ltd. operates an engine valves which produces and distributes electricity and heat energy to public and private sector as well as contract manufacturers by focusing on alternative energy. Enesol is a subsidiary of Capital Engineering Network Public Company Limited (CEN). The ENS received a 15 years concession agreement to sell electricity of 4.6 MW capacity, and heat energy of capacity 35 MMBTU/hr to Thai German Ceramic Industries Public Company Limited (TGCI). The plant operates 24 hours, with approximately 8 employees. ENS plant is in a building located within the compound of TGCI. .